All the Confederate states, plus Kentucky, Oklahoma (Indian Territory that was), and Missouri granted pensions. The eligibility conditions varied by state and by time: it might be all veterans, indigent ones, crippled ones, old ones; many had widows' pensions; Arkansas had pensions for mothers; some provided soldiers' homes (as in retirement homes or nursing homes).

There's a summary page at the U. S. National Archives, Confederate Pension Records, https://www.archives.gov/research/military/civil-war/confederate/pension.html . It lists the criteria for each state, with years when they were established or changed, and indicates where to find the records, either from each state or in published books.